APA (7th ed.) Citation

Gifford, E. M., & Foster, A. S. (1989). Morphology and evolution of vascular plants (3. ed.). Freeman.

Chicago Style (17th ed.) Citation

Gifford, Ernest M., and Adriance S. Foster. Morphology and Evolution of Vascular Plants. 3. ed. New York, NY: Freeman, 1989.

MLA (9th ed.) Citation

Gifford, Ernest M., and Adriance S. Foster. Morphology and Evolution of Vascular Plants. 3. ed. Freeman, 1989.